| Huvudföda | Procent |
Trofisk nivå (y) |
Studerat utvecklingsstadium | Land | Observationsplats | Ref. |
|---|---|---|---|---|---|---|
| zooplankton | 52 | 3.2 | adults | Malaysia | Bukit Merah Reservoir, between September 1979 and August 1980 | 13497 |
| detritus | 97 | 2.1 | juv./adults | Philippines | Mihaba, southeastern Agusan Marsh, Nov. 1998 to Oct. 1999 | 55076 |
| detritus | 49 | 2.4 | adults | Philippines | Dinagat, southeastern Agusan Marsh, Nov. 1998 to Oct. 1999 | 55076 |
| plants | 47 | 2.1 | adults | Philippines | Ticgon, southeastern Agusan Marsh, Nov. 1998 to Oct. 1999 | 55076 |
| detritus | 52 | 2.1 | adults | Sri Lanka | Minneriya reservoir, August 1998-August 2000 | 59235 |